Hydrogen sulfide alleviated chromium toxicity in wheat
2010
Zhang, H.,Hefei Univ. of Technology (China). School of Biotechnology and Food Engineering | Hu, L.Y.,Hefei Univ. of Technology (China). School of Biotechnology and Food Engineering | Li, P.,Hefei Univ. of Technology (China). School of Biotechnology and Food Engineering | Hu, K.D.,Hefei Univ. of Technology (China). School of Biotechnology and Food Engineering | Jiang, C.X.,Wenzhou Medical Coll. (China). School of Pharmacy | Luo, J.P.,Hefei Univ. of Technology (China). School of Biotechnology and Food Engineering
Effects of H2S on seed germination under chromium stress were investigated in Triticum aestivum. Under Cr stress, the percentage of germination of wheat seeds decreased, but this decrease could be alleviated by pretreatment with NaHS, an H2S donor, in a dose-dependent manner. Furthermore, NaHS significantly enhanced the activities of amylase, esterase, superoxide dismutase, catalase, ascorbate peroxidase, and guaiacol peroxidase in Cr-stressed germinating seeds, whereas reduced the Cr-induced increase in lipoxygenase activity and over-production of malondialdehyde and H2O2, and sustained slightly higher content of endogenous H2S.
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